Analog Electronics
The current gain of a pnp transistor is

 near zero.
 the ratio of collector current to emitter current.
 the negative of the npn current gain.
 the collector current divided by the emitter current.

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Analog Electronics
When a transistor is connected in common emitter mode, it with have

High input resistance and low output resistance
Low input resistance as well as output resistance
Negligible input resistance and high output resistance
Medium input resistance and high output resistance

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